Perhaps you should try some spelling variations:
"literatura breve de isaac." » "literatura en de isaac.", "literatura e de isaac."
"literatura del de isaac." » "literatura en de isaac.", "literatura del dean isaac."
"literatura de x islam." » "literatura de e islam.", "literatura de _ islam.", "literatura de el islam.", "literatura del x islam.", "literatura de ex islam.", "literatura de ix islam."

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("literatura breve de isaac.") OR ("literatura del de isaac."))) or ("literatura de x islam."))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("literatura breve de isaac.") OR ("literatura del de isaac."))) OR ("literatura de x islam.")).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((\"literatura breve de isaac.\") OR (\"literatura del de isaac.\"))) or (\"literatura de x islam.\"))".
• Removing quotes may allow a broader search: (((( literatura breve de isaac. ) OR ( literatura del de isaac. ))) or ( literatura de x islam. )).
• Adding a wildcard symbol may retrieve word variants: (((("literatura breve de isaac.") OR ("literatura del de isaac."))) or ("literatura de x islam."))*.